Detection method of agastache rugosus and preparation thereof
A detection method and preparation technology, applied in the field of medicine, can solve problems such as the quality of Difficult Agricola and its preparations, and achieve the effects of convenient analysis, improved scientificity and high precision
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Embodiment 1
[0057] The HPLC detection method of Huoxiang medicinal materials includes the following steps:
[0058] 1. Chromatographic conditions and system suitability test:
[0059] 1.1 Preparation of the test solution: take about 0.5 g of Huoxiang crude powder, accurately weigh it, put it in a conical flask with a stopper, add 25 mL of methanol, use ultrasonic treatment (power 500W, frequency 40kHz) for 30min, let it cool, Filter, take the filtrate to get the test solution.
[0060] Preparation of reference solution: Take appropriate amounts of caffeic acid, terinoside and acacia locust respectively, accurately weigh them, and use methanol to prepare reference solution with a concentration of 40 μg / mL.
[0061] Precisely draw 10 μL of the reference solution and the test solution, respectively, and inject them into the liquid chromatograph for determination and analysis.
[0062] 1.2 HPLC analysis chromatographic conditions: use octadecylsilane-bonded silica gel as filler (column leng...
Embodiment 2
[0127] The HPLC detection method of Huoxiang standard decoction includes the following steps:
[0128] 1. Chromatographic conditions and system suitability test:
[0129]According to the method of Example 1, the chromatographic conditions and system adaptability test were carried out, in which the Huoxiang medicinal material was replaced with the freeze-dried powder of the Huoxiang standard decoction. The results showed that the HPLC analysis chromatographic conditions of the Huoxiang standard decoction were: Silane-bonded silica gel is used as filler (column length is 250 mm, inner diameter is 4.5 mm, particle size is 5.0 μm); acetonitrile is used as mobile phase A, and 1.0% acetic acid is used as mobile phase B, and the gradient is carried out according to Table 1 in Example 1. Elution, the detection wavelength is 330 nm, the flow rate is 1.0 mL / min, and the column temperature is 35 °C.
[0130] 2. Preparation and investigation of the test solution:
[0131] 2.1 Investigat...
Embodiment 3
[0152] The HPLC detection method of Huoxiang Formula Granules includes the following steps:
[0153] 1. Chromatographic conditions and system suitability test:
[0154] The chromatographic conditions and system adaptability test were carried out according to the method of Example 1, wherein the Huoxiang medicinal material was replaced with Huoxiang formula granules. The results showed that the HPLC analysis chromatographic conditions of the obtained Huoxiang formula granules were as follows: binding silica gel with octadecylsilane It is a filler (the column length is 250 mm, the inner diameter is 4.5 mm, and the particle size is 5.0 μm); acetonitrile is used as mobile phase A, 1.0% acetic acid is used as mobile phase B, and gradient elution is carried out according to Table 1 in Example 1, and the detection wavelength is 330 nm, the flow rate is 1.0 mL / min, and the column temperature is 35 °C.
[0155] 2. Preparation and investigation of the test solution:
[0156] Take 0.1 ...
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